User’s Guide
AR-B1991
12
3
Connection(AR-B1991)
COM2 : RS-232 Serial port (2.0mmPin Header).
SATA1,3 : Serial ATA Port .
CN16 : COM1,COM3~6 Connector .
PIN DESCRIPTION PIN DESCRIPTION
1 DCD 2 RX
3 TX 4 DTR
5 GND 6 DSR
7 RTS 8 CTS
9 RI 10 NC
PIN DESCRIPTION
1 GND
2 TX+
3 TX-
4 GND
5 RX+
6 RX-
7 GND
